<div class='article' id='article_1'>
  <h1>Hello</h1>
  <div>World</div>
</div>
<div class='article' id='id_article_1'>id</div>
<div class='article class' id='article_1'>class</div>
<div class='article class' id='id_article_1'>id class</div>
<div class='article full' id='article_1'>boo</div>
<div class='article full' id='article_1'>moo</div>
<div class='article articleFull' id='article_1'>foo</div>